Powerbutton reacts, but doesn't start G5

Question

Power Mac G5

PowerMac G5는 Apple Corporation에서 2003년에 처음 제조한 데스크톱 컴퓨터입니다. 이 안내서는 2004년 Apple PowerMac G5 모델 번호 A1047 EMC 2061의 수리 과정을 검토합니다. 2006년에 먼저 개발자에게 그 후 소비자에게 Intel 스위치의 일환으로 판매가 중단되었습니다.

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Peter @peter19719

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게시일: 2010년 8월 3일

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Powerbutton reacts, but doesn't start G5

After having being shut down a couple of weeks, my powermac G5 dual 2,3 (PowerMac11,2) won't start up.

As seen on this video http://www.spildaftid.dk/peter/G5_error.... the button reacts with a click-sound and the red diode, but nothing happens. You can see on the video that when I try the third time, I keep the button in, which results in the white power light keeps being on, but nothing happens after that (I tried to let it be on for five minutes).

There is no startup sound, no sound from HD (which is only 4 months old), nothing on the screen (and can't obviously start from dvd or external drive), the internal battery is also only around 4 months. The white light doesn't blink.

I have tried zapping the PRAM and pressing the PMU w/o any luck.

TIA,

Peter

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markus weiher @markusweiher 평판: 35.1k 140 71 53 · Answer 1 · 2010-08-03T13:44:59-07:00

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markus weiher @markusweiher

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i never had one of those power mac's - but it looks like a capacitor or a power supply issue - had a similar thing on my hp notebook - in my case it was a capacitor problem. but i've also seen problems with empty pram batteries!

i would start with measuring the PRAM battery, if that won't help - measure the PSU - the pinout (and possible conversion of an atx psu can be found here (CLICK)) with a multimeter

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